Luminous Broodmoth + Nardole, Resourceful Cyborg + Arcbound Ravager

Luminous Broodmoth

Nardole, Resourceful Cyborg

Arcbound Ravager

How it works

1. Activate Arcbound Ravager by sacrificing Nardole.
2. When Nardole dies, its undying ability triggers if it didn't have a +1/+1 counter, and Luminous Broodmoth triggers if Nardole didn't have flying.
3. Resolve the undying trigger, if applicable, returning Nardole from your graveyard to the battlefield with either a +1/+1 counter on it.
4. Resolve the Luminous Broodmoth trigger, if applicable, returning Nardole from your graveyard to the battlefield with a flying counter on it if the creature is still in your graveyard.
5. Resolve the Arcbound Ravager ability.
6. Repeat.